Display Panel Layer Sharing for Thin Electromagnetic Touch
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Solution Overview
Problem
Conventional display panels with electromagnetic touch functions suffer from increased thickness and complex manufacturing processes due to the addition of an extra electromagnetic coil layer.
Innovation Solution
The display panel integrates capacitive and electromagnetic touch portions in different layers, allowing at least one electromagnetic touch portion to share the same layer as the capacitive touch part, optimizing space utilization and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an additional electromagnetic coil layer is added to the display panel, then electromagnetic touch functions are achieved, but the overall thickness increases
Solution Approach 1:
The patent merges the electromagnetic coil layer with the capacitive touch layer by arranging electromagnetic coil lines and capacitive touch electrodes in the same layer, allowing dual functionality without increasing thickness
Solution Approach 2:
The same layer is designed to serve multiple functions: capacitive touch detection and electromagnetic touch signal generation, making the layer universal and eliminating the need for separate dedicated layers
2Adaptability or versatility
If an additional electromagnetic coil layer is added to the display panel, then electromagnetic touch functions are achieved, but the manufacturing process becomes complicated
Solution Approach 1:
The patent combines the manufacturing of electromagnetic coil lines and capacitive touch electrodes into a single layer formation process, reducing the number of manufacturing steps and simplifying the overall process
Solution Approach 2:
A single layer structure is designed to provide both capacitive and electromagnetic touch functionalities, eliminating the need for separate manufacturing processes for different touch layers
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design results in a thinner display panel with a simplified manufacturing process, improved space efficiency, and reduced production costs while maintaining both capacitive and electromagnetic touch functionalities.
Implementation Method 1
an electromagnetic touch part that includes a first electromagnetic touch portion and a second electromagnetic touch portion arranged in different layers
Implementation Method 2
a capacitive touch part, and the capacitive touch part includes a first capacitive touch portion and a second capacitive touch portion arranged in different layers
Data Source
AI summary
The present application provides a display panel and a driving method. The display panel includes a capacitive touch part. The capacitive touch part includes a first capacitive touch portion and a second capacitive touch portion arranged in different layers. The display panel includes electromagnetic coils. The electromagnetic coils include an electromagnetic touch part. The electromagnetic touch part includes a first electromagnetic touch portion and a second electromagnetic touch portion arranged in different layers. At least one of the first electromagnetic touch portion and the second electromagnetic touch portion is arranged in a same layer as the capacitive touch part.